Tags Tags

Debian's grub doesn't detect Ubuntu

June 27th, 2012 - 03:40 am ET by Mika Suomalainen | Report spam
Help Create a new topic
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)

Hi,

I have three OSes on this computer. They are Debian Sid, Ubuntu Precise
and Windows 7.

It seems that Debian's grub can only detect Debian and Windows 7, but
not Ubuntu.

I have tried Googling and running update-grub some times, but I haven't
found anything useful.

What should I try now?

Thanks in advantage.

[Mika Suomalainen](https://mkaysi.github.com/) ||

NOTICE! I am on mobile broadband with very limited time, so I cannot
read emails very much.
The best time to contact me is probably weekends when I have better
connectivity with good luck.

[gpg --keyserver pool.sks-keyservers.net --recv-keys
4DB53CFE82A46728](http://mkaysi.github.com/PGP/key.txt) ||
[Why do I sign my
emails?](http://mkaysi.github.com/PGP/WhyDoISignEmails.html) ||
[Do you have problems verifying my PGP/MIME signature on mailing
list?](http://mkaysi.github.com/PGP/PGP-MIME.html) ||
[Please don't send
HTML.](http://mkaysi.github.com/articles/c.../HTML.html) ||
[This signature](https://gist.github.com/2643070#file_icedove.md)

[Please reply below this
line](http://mkaysi.github.com/articles/c...sting.html)

____________________________






To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
Archive: http://lists.debian.org/4FEAB824.8080500@hotmail.com
email Follow the discussionReplies 14 repliesReplies Make a reply

Similar topics

Display all similar topics

Replies

#1 Keith McKenzie
June 27th, 2012 - 04:20 am ET | Report spam
You could, most likely, enter it by hand into the grub configuration;
& it should then be available on your next reboot.

In /boot/grub/grub.cfg;

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###


Sent from FOSS (Free Open Source Software)
Debian GNU/Linux


To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/CAL36VGkt6XfXYxR=
Replies Reply to this message
#2 Andrei POPESCU
June 27th, 2012 - 04:30 am ET | Report spam

On Mi, 27 iun 12, 10:37:08, Mika Suomalainen wrote:
Hi,

I have three OSes on this computer. They are Debian Sid, Ubuntu Precise
and Windows 7.

It seems that Debian's grub can only detect Debian and Windows 7, but
not Ubuntu.



I'm sure the developer of os-prober would like to know about this, how
about filing a bug (if one doesn't exist already)?

Kind regards,
Andrei
Offtopic discussions among Debian users and developers:
http://lists.alioth.debian.org/mail...y-offtopic





To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/
Replies Reply to this message
#3 Siard
June 27th, 2012 - 10:40 am ET | Report spam
Mika Suomalainen wrote:
It seems that Debian's grub can only detect Debian and Windows 7, but
not Ubuntu.



First make sure that Ubuntu's /boot/grub/grub.cfg contains a menuentry
for Ubuntu in the section starting with
### BEGIN /etc/grub.d/10_linux ###
If not, run update-grub in Ubuntu.

Once it does, run update-grub in Debian.
If Ubuntu still is not detected for some reason, you can always copy
the menuentry from Ubuntu's /boot/grub/grub.cfg to
Debian's /etc/grub.d/40_custom, and run update-grub in Debian once
again.


To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/
Replies Reply to this message
#4 Helgi Örn Helgason
June 27th, 2012 - 11:40 am ET | Report spam
On 27 June 2012 07:37, Mika Suomalainen wrote:
Hi,

I have three OSes on this computer. They are Debian Sid, Ubuntu Precise
and Windows 7.

It seems that Debian's grub can only detect Debian and Windows 7, but
not Ubuntu.

I have tried Googling and running update-grub some times, but I haven't
found anything useful.

What should I try now?



Did you mount the Ubuntu partition before running update-grub?
If not, then try that. Usually that will help.

Cheers,
/HÖ


To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/CAKuLEK4oZ5vP76QLiN+
Replies Reply to this message
#5 Mika Suomalainen
June 28th, 2012 - 07:00 am ET | Report spam
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)

On 27.06.2012 18:35, Helgi à–rn Helgason wrote:
On 27 June 2012 07:37, Mika Suomalainen wrote:
> Hi,
>
> I have three OSes on this computer. They are Debian Sid, Ubuntu Precise
> and Windows 7.
>
> It seems that Debian's grub can only detect Debian and Windows 7, but
> not Ubuntu.
>
> I have tried Googling and running update-grub some times, but I haven't
> found anything useful.
>
> What should I try now?
>


Did you mount the Ubuntu partition before running update-grub?
If not, then try that. Usually that will help.



Thank you for your reply.

I tried mounting all partitions now and running update-grub after
reading your email, but it didn't seem to work. I am still seeing only
Debian and Windows 7 in GRUB.

[Mika Suomalainen](https://mkaysi.github.com/) ||

NOTICE! I am on mobile broadband with very limited time, so I cannot
read emails very much.
The best time to contact me is probably weekends when I have better
connectivity with good luck.

[gpg --keyserver pool.sks-keyservers.net --recv-keys
4DB53CFE82A46728](http://mkaysi.github.com/PGP/key.txt) ||
[Why do I sign my
emails?](http://mkaysi.github.com/PGP/WhyDoISignEmails.html) ||
[Do you have problems verifying my PGP/MIME signature on mailing
list?](http://mkaysi.github.com/PGP/PGP-MIME.html) ||
[Please don't send
HTML.](http://mkaysi.github.com/articles/c.../HTML.html) ||
[This signature](https://gist.github.com/2643070#file_icedove.md)

[Please reply below this
line](http://mkaysi.github.com/articles/c...sting.html)

____________________________






To UNSUBSCRIBE, email to
with a subject of "unsubscribe". Trouble? Contact
Archive: http://lists.debian.org/
Replies Reply to this message
Help Create a new topicNext page Replies Make a reply
Search Make your own search